Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Ports & interfaces | |
| PCI Express connector | ![]() |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 9 |
| EPS power connector (8-pin) | ![]() |
| ATX power connector (20+4 pin) | ![]() |
| PCI Express power connectors (8-pin) | 2 |
| CPU power connector (4+4 pin) | ![]() |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Fully-Modular |
| Motherboard power cable length | 60 cm |
| SATA power cable length | 550,750,650 mm |
| CPU power cable length | 60 cm |
| Peripheral (Molex) power cable length | 550,850,750,650 mm |
| EPS power connector (4+4 pin) | ![]() |
| PCI Express power connectors (16-pin) | 1 |
| Weight & dimensions | |
| Weight | 1.52 kg |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 140 mm |
| Energy management | |
| Peak power | 850 W |
| Input current | 10-5 A |
| Nominal power | 850 W |
| Power factor | 0.9 |
| Power Factor Correction (PFC) type | Active |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 20 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| AC input frequency | 50/60 Hz |
| AC input voltage | 100 - 240 V |
| Max output current (+12V1) | 70.8 A |
| Total power | 850 W |
| Maximum input current (@110V) | 10 A |
| Maximum input current (@220V) | 5 A |
| Certificates | |
| RoHS compliance | ![]() |
| 80 PLUS certification | 80 PLUS Gold |
| Design | |
| Product colour | Black |
| Illumination | ![]() |
| Number of fans | 1 fan(s) |
| On/off switch | ![]() |
| Fan diameter | 12 cm |
| Performance | |
| Mean time between failures (MTBF) | 1000000 h |
| Form factor | ATX |
| Noise level | 30 dB |
| Purpose | PC/Server |
| Supported motherboard form factors | ATX |
| ATX version | 3.0 |
| Silent mode | ![]() |
| Power supply unit (PSU) form factor | ATX |
| EAN | 0753263078407 |
| Warranty | 5 years |
The CHIEFTEC ATMOS CPX-850FC is an internal power supply unit engineered for modern high-performance systems, providing a continuous output of 850W. It is compliant with the ATX 3.0 specification, designed to manage high transient power spikes from current-generation components. Its 80 PLUS Gold certification signifies high operational efficiency, reducing excess heat and energy consumption. The fully modular cable system facilitates a cleaner build process and enhances internal airflow by removing unused cables. A native 12VHPWR connector ensures direct and reliable power for PCIe Gen5 graphics cards.
Thermal performance is handled by a 120 mm fan with automatic speed control, which adjusts based on system load. An integrated ECO mode enables fanless operation at low power draw, minimizing acoustic output during idle or light tasks. Housed in a standard ATX chassis with a 140 mm depth, the unit ensures broad compatibility with most PC cases. Active Power Factor Correction (PFC) maintains stable input, while a full suite of protections including OVP, SCP, and OTP safeguards the system's components from electrical anomalies.
Key Features:- Delivers 850W of continuous power
- 80 PLUS Gold certified for high efficiency
- Standard ATX form factor for broad case compatibility
- Fully modular cable design for easier management
- Features a 120 mm fan with a low-load silent mode
- Supports ATX 3.0 and PCIe 5.0 standards
- Measures 150 x 140 x 86 mm (W x D x H)
- Includes a comprehensive suite of power protection circuits
Estimated delivery: 23.12 - 29.12
Today: 10:00 - 18:00
Estimated delivery: 23.12 - 29.12
Today: 09:00 - 17:00
Estimated delivery: 23.12 - 29.12
Today: 10:00 - 17:00
Estimated delivery: 23.12 - 29.12
Today: 10:00 - 18:00
Estimated delivery: 23.12 - 29.12
Today: 10:00 - 17:00
Estimated delivery time: 23.12 - 29.12
Estimated delivery time: 24.12 - 29.12
Estimated delivery time: 23.12 - 28.12
Estimated delivery time: 24.12 - 29.12
Estimated delivery time: 24.12 - 28.12
Estimated delivery time: 23.12 - 29.12
Estimated delivery time: 23.12 - 29.12
Estimated delivery time: 24.12 - 28.12


